OrienTek T20 Portable Testpro Optical Power Meter
1. 850/1300/1310/1490/1550/1625nm
2. With FC/SC/ST Connector
3. Six wavelength
4. Rechargeable Li-battery instead of dry battery
T20 Portable optical power meter is an accurate and durable handheld meter designed for the installation, operation and maintenance of optical fibre network. It is a compact device with backlight switch and auto power on-off ability. Besides, it provides ultra-wide measurement range, high accuracy, user self-calibration function and universal port. In addition, it displays linear indicators (mW) and non-linear indicators (dBm) in one screen at the same time.1. 850/1300/1310/1490/1550/1625nm
2. With FC/SC/ST Connector
3. Six wavelength
4. Rechargeable Li-battery instead of dry battery
Features:
1. Self calibration by user himself
2. Rechargeable lithium battery supports continuous work for up to 48 hours.
3. Linear indicators (mW) and non-linear indicators (dBm) display in one screen
4. Unique FC/SC/ST universal port (see Figures 1, 2), no complex conversion
5. Optional auto power-off ability
6. Backlight ON/OFF
Specifications:
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Model
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T20A
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T20B
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Measurement range
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-70~+3
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-50~+26
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Type of probe
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InGaAs
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Range of wave length
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800~1700
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Uncertainty
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±5%
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Standard wave length (nm)
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8509801300131014901550
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Resolution
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Linear indication: 0.1% Logarithmic indication: 0.01dBm
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Working temperature
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-10~+60
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Storage temperature
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-25~+70
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Auto power-off time (min)
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10
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Continuous working hours
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At least 48 hours
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Dimensions (mm)
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190×100×48
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Power supply
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AA Rechargeable Battery
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Weight(g)
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400
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Function descriptions:
1 LCD
It displays the optical power measurement results in forms of dB, dBm, mW, uW, nW; the set wave length is 850nm , 980 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, etc.
2 ON/OFF
To power on the meter, press and hold ON/OFF till information appears in LCD; while in power-on state, press the key to power off the meter.
3 dB
Measure relative optical power under preset wave length.
4 ZERO
Press this key to zero the optical power meter.
5 λ
Press λ key to select wave length, there are six wave length, i.e.: 850nm , 980 nm, 1300 nm, 1310 nm,
1490 nm, 1550 nm for your choice, their values will appear in LCD respectively.
6 LIGHT
Press this key to turn on/off the back light of LCD.
7AUTOOFF
Press this key to enable or disable AUTOOFF function of the meter.
Operating Instructions
Power ON/OFF
1. Press and hold ON/OFF on the panel till information appears in LCD.
2. Press ON/OFF on the panel, information disappears from LCD, the meter is powered off.

